(19)
(11) EP 0 203 271 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
01.06.1988 Bulletin 1988/22

(43) Date of publication A2:
03.12.1986 Bulletin 1986/49

(21) Application number: 86102584

(22) Date of filing: 27.02.1986
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 01.03.1985 JP 8500102
17.04.1985 NO 851538
20.09.1985 JP 20932085

(71) Applicant: Takeda Chemical Industries, Ltd.
 ()

(72) Inventors:
  • Miyake, Akio
     ()
  • Kondo, Masahiro
     ()
  • Fujino, Masahiko
     ()

   


(54) Antibacterial compounds, their production and use


(57) A compound of the formula;

wherein R1 is an amino group which may be protected, R3 is a hydrogen atom or an optionally substituted hydrocarbon residue; Z is S, S → O, O or CH2, R4 is a hydrogen atom, methoxy group or formamido group, R13 is a hydrogen atom, methyl group, hydroxyl group or halogen atom and A⊕ is an optionally substituted imidazolium-1-yl group forming a condensed ring at the 2,3- or 3,4-position or a pharmaceutically acceptable salt or ester thereof is novel and has excellent antibacterial activity.





Search report